A kind of fast seed selection method for watermelon hybridization
A hybrid and watermelon technology, applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, can solve the problems of low breeding efficiency, long selection generation, slow breeding progress, etc. Short, fast breeding effect
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Embodiment 1
[0028] Embodiment one of the present invention provides a kind of watermelon hybridization rapid seed selection method, comprises the following steps:
[0029] a. First-generation selection: determine that the target traits are full leaf shape, high round fruit shape, dark green peel, and green rack covered with peel, and select homozygous male parents (full leaf shape, high round fruit shape, green skin, fruit covered with reticulated pattern) and the homozygous female parent (notched leaf shape, high round fruit shape, white and green peel, and green rack covered peel), and the obtained hybrid is planted. After the hybrid plant blooms, the single plant will After the fruit is mature, according to the target traits, select 6 well-developed fruits and keep them as seeds;
[0030] b. Second generation selection:
[0031] b1. The seeds of the 6 fruits obtained in step a are raised respectively. Since the gene logarithms that need to be adjusted to be homozygous are three pairs ...
Embodiment 2
[0043] The present embodiment two of the present invention provides a kind of watermelon hybridization rapid seed selection method, comprises the following steps:
[0044] a. First-generation selection: determine the target traits as leaf-shaped entire margins, fruit-shaped elongated or round, green skin, and pericarp covered with racks, and select homozygous male parents (leaf-shaped entire margins, fruit-shaped high round, and pericarp deep green, peel-covered rack) and the homozygous female parent (notched leaf shape, long fruit shape, white-green peel, and net-covered peel) are crossed, and the obtained hybrid is planted. After the hybrid plant blooms, the single plant Selfing, and then after the fruit matures, according to the target traits, select two well-developed fruits and keep them as seeds;
[0045] b. Second generation selection:
[0046] b1. The seeds of the 2 fruits obtained in step a are raised respectively. Since the gene logarithms that need to be adjusted t...
Embodiment 3
[0056] Embodiment three of the present invention provides a kind of watermelon hybridization rapid seed selection method, comprises the following steps:
[0057] a. First-generation selection: Determine the target traits as full-edge leaf shape and high-round fruit shape, and select homozygous male parents (full-edge leaf shape, high-round fruit shape, green skin, and reticulated peel) and homozygous female parents (notched leaf shape, high round fruit shape, green skin, and reticulated peel) are hybridized, and the obtained hybrid is planted. After the hybrid plant blooms, the individual plant is selfed, and then after the fruit is ripe, according to the target character, Select five well-developed fruits and keep them as seeds;
[0058] b. Second generation selection:
[0059] b1. The seeds of the 5 fruits obtained in step a are raised respectively. Since the gene logarithm that needs to be adjusted to be homozygous is only the pair of leaf shape, the number of seedlings sh...
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